UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'eVeljkFuplBsIpzB8yU+B0o5ZD4SDWS3p+685bkRVL4=' 
WHERE 
  key_id = '4d84921ffce78649aa901800188cad81a19a78320e6581427dace677190db864' 
  AND (
    token = 'eVeljkFuplBsIpzB8yU+B0o5ZD4SDWS3p+685bkRVL4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )